11 citations
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December 2011 in “The Journal of Dermatology” December 2025 in “Cureus” This case report discusses the Renbök phenomenon observed in an 11-year-old girl who presented with both alopecia areata and psoriasis vulgaris. The patient exhibited multiple hyperpigmented scaly plaques on various parts of her body, including the scalp, trunk, and limbs, while experiencing patchy hair loss on the scalp that was notably free of these plaques. The report highlights an intriguing immunological interaction between these two autoimmune conditions, where the presence of one disorder appears to inhibit the manifestation of the other in the affected areas.
July 2018 in “Our Dermatology Online” Alopecia areata does not affect areas with psoriasis plaques.
8 citations
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August 2012 in “Archives of dermatology” Psoriasis can cause hair growth in areas affected by alopecia areata.
11 citations
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January 2010 in “European Journal of Dermatology” Contact immunotherapy helped hair regrow in a patient with both alopecia and psoriasis.